I tend to doubt there is such a thing as a "high functioning alcoholic"--that's usually a temporary stage on the way to "completely non-functioning." When I quit drinking I still had all the "stuff"--responsible job, own home, car, no jail, hospitalizations, duis, etc. But I was a complete mess inside and if I hadn't quit drinking the "stuff" would have eventually fallen apart, too.
I suggest you find an Al-Anon meeting. It will be very comforting to be with others who TOTALLY get how you feel, and it will help you to get centered so you can make good decisions about your life. Nobody will tell you to stay or to go--that's a decision only you can make. First thing, though, is to get your feet on the ground.
Welcome, glad you found us.